From Mr.Puzzle.
The puzzle shown in this video is available here:
Twelve Straight Twisted: https://cubicdissection.com/collections/discontinued-work/products/twelve-straight-twisted-interlocking-puzzle
Foreverpen: https://jpgamesltd.co.uk/Titanium-ForeverPen?tracking=5b69d72b2ffff
My Amazon.com shop:
https://www.amazon.com/shop/mrpuzzle
As an Amazon Associate, I earn from qualifying purchases.
My favorite puzzle shops on Etsy:
https://tidd.ly/3lPMHpk
Music and SFX I used in this video is available here:
https://www.epidemicsound.com/referral/kuvcff (30-day free trial by using this link)
More cool puzzle shops I do recommend:
US:
https://www.puzzlemaster.ca/?a=643812
https://kubiyagames.com/?ref=3umdg4xg (10% off by using Coupon Code "MRPUZZLE")
https://www.creativecrafthouse.com/?Affiliate=MrPuzzle
https://cubicdissection.com/
Europe:
https://jpgamesltd.co.uk/?tracking=5b69d72b2ffff
https://cruxpuzzles.co.uk/ref/christianihlo/
https://www.knobelbox.com/?sPartner=mrpuzzle
https://escapewelt.com/shop/ (get 10% off by using coupon "MRPUZZLE")
https://www.logicagiochi.com/?aw_affiliate=eyJjYW1wYWlnbl9pZCI6IjEiLCJ0cmFmZmljX3NvdXJjZSI6IllvdXR1YmUgSG9tZSIsImFjY291bnRfaWQiOjF9
https://twobrassmonkeys.com/?ref=1himb1lcs_k-
Asia & Australia:
https://www.siammandalay.com/?ac=mrpuzzle
https://cmycubes.com/?ref=1himb1lcs_k-&urm_source=affiliate (5% off by using Coupon Code "MRPUZZLE")
MoYu: https://shareasale.com/r.cfm?b=1307145&u=1695622&m=85396&urllink=&afftrack=
Stirlingkit: https://shareasale.com/r.cfm?b=1362104&u=1695622&m=89076&urllink=&afftrack=
EngineDIY: https://www.enginediy.com/?ref=1himb1lcs_k- ( 10% off by using Coupon Code "MRPUZZLE" )
The links above are affiliate links. If you click the link and buy a product, I will receive a commission from the seller.